Giants to Promote Outfield Prospect Jonah Cox to the Big Leagues, Worth a Pick Up in All Leagues?
The San Francisco Giants are promoting outfield prospect Jonah Cox to the big leagues, per Susan Slusser of The San Francisco Chronicle. Cox will take the roster spot of left-handed reliever Ryan Borucki, who has been designated for assignment. Cox is being promoted directly from Double-A Richmond, where he was off to a ridiculously hot start to 2026. Across 183 plate appearances, the 24-year-old hit .400/.453/.644 with six home runs, 35 RBI, 31 runs scored, and 27 stolen bases. With San Francisco, the righty-swinging Cox could be ticketed for a platoon role with Giants center fielder Drew Gilbert. While Cox may struggle with the transition from Double-A to MLB pitching, he's considered an elite base runner whose speed should play right away in the big leagues. For fantasy managers in need of stolen bases, Cox could be worth a look on the waiver wire.
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